[RE-wrenches] 2 SW inverters on three phase

[boB Gudgel]

On 7/28/2011 12:32 PM, William Miller wrote:
> Friends:
>
> First of all, the inverters are PS series, not SW.
>
> Second, I have created a solution:  I can acquire a transformer that 
> will connect a primary across two of the 208 generator phases and 
> create 120/240 off of the secondary.  This will imbalance the 
> generator but the genset is 37 kva so the inverter loads are 
> inconsequential.
>
> William
>
>


That should work.

I seem to remember that the SW and PS, even when stacked with the cable 
will sync up to the generator
or grid by whatever is presented at its grid or gen input. I think the 
stacking cable only synched up the inverter phase to
be 180 degrees when inverting as well as coordinating the charging 
functions.

Your transformer would certainly keep away the re-synching from 120 
degrees to 180 degrees as Phil was talking about.

Otherwise, some kind of delay-relay might have been necessary until the 
phases got right if 240V loads were on the
PS outputs.

boB

>
>
>>> On Thu, Jul 28, 2011 at 12:23 AM, William Miller 
>>> <william at millersolar.com <mailto:william at millersolar.com>> wrote:
>>>
>>>     Friends:
>>>
>>>     Is there any way to connect two SW series inverters to two
>>>     phases of a three phase generator?  It seems to me that one
>>>     could connect three SW inverters with the right stacking cable
>>>     (or am I confusing Outback inverters with the hub jumper set
>>>     properly).
>>>
>>>     Any input is appreciated.
>>>
>>>     Thanks,
>>>
>>>     William
>>>
>>>     William Miller
>>>     Miller Solar
>>>     Voice :805-438-5600 <tel:805-438-5600>
>>>     email: william at millersolar.com <mailto:william at millersolar.com>
>>>     http://millersolar.com <http://millersolar.com/>
>>>     License No. C-10-773985
>>>
>> _______________________________________________
>> List sponsored by Home Power magazine
>>
>> List Address: RE-wrenches at lists.re-wrenches.org
>>
>> Options & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> List-Archive: 
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>> List rules & etiquette:
>> www.re-wrenches.org/etiquette.htm 
>> <http://www.re-wrenches.org/etiquette.htm>
>>
>> Check out participant bios:
>> www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
>>
>> No virus found in this message.
>> Checked by AVG - www.avg.com <%27http://www.avg.com%27>
>> Version: 10.0.1390 / Virus Database: 1518/3793 - Release Date: 07/28/11
>
> William Miller
> Miller Solar
> Voice :805-438-5600
> email: william at millersolar.com
> http://millersolar.com
> <http://millersolar.com/>License No. C-10-773985
>
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Options&  settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules&  etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20110728/ae48d3ca/attachment-0004.html>